Cash register



F. FULLER June 4, 1929.

CASH REGISTER Filed Oct. 9, 1922 5 Sheets-Sheet 1 M, 1 m. L M. d

ATTORNEYS June 4, 1929. ER 1,715,910

CASH REGISTER Filed OCt. 9, 1922 5 Sheets-Sheet 2 lNVENT OR Frederick L.

BY ma% I I 50 60 n V, H

ATTORNEYS F. 1.. FULLER CASH REGISTER June 4, 1929.

Filed Oct. 9, 1922 5 Sheets-Sheet 5 R EYS INVENTQR Fred erieK LiFfller km W Om Ema MM NIT 1 v EN XWWWM? June 4, 1929. FULLER 1,715,910

CASH REGISTER Filed Oct. 9. 1922 5 Sheets-Sheet 4 15%! 44 i nmll I k mvzmon 11784 rick L.F' ller BY a/@1 4 ATTORNEYS \NITNEJS-S F. L. FULLER,

June 4, 1929.

CASH REGISTER Filed Oct. 9 1922 5 Sheets-Sheet 5 INVENTOR" E'ederick 1,.11-J1Gr I A ORNEYS N11; NEsS W v Patented June 4, 1929.

UNITE-El? STATES ra'rsnrorlncs} FREDERICK L. FULLER, OF ILION, NEW YORK, ASSIGNOR TO REMINGTON ARMS COM- PANY, INC., A CORPORATION OF DELAWARE.

' CASH REGISTER. I

Application filed October 9, 1922. SerialNo. 593,386.

This invention relates to improvements in indicating mechanism for cash registers and accounting machines.

One object of the present invention is to provide an improved form of selectingthem in such a manner that the amount of the transaction will be rendered visible in its correct denominational order from both sides of the machine.

Another object of the present invention is to provide a new form of interlock between keys of different groups so as to compel an operation of a classification key before the operation of keys related to the transaction and denominational order groups.

More specifically it is an object of the present invention to devise an improved form of mechanism for elevating a vertically movable indicator carriage, in which are slidably mounted indicators of the tablet type, during the first operation of the machine; and means connected with the differential mechanism for selecting indicators identifying the keys depressed and retaining them in their elevated or exposed position during the second operation of the machine.

WVith these and incidental objects in view the invention consists in certain novel features of construction and combination of parts, the essential elements of which are set forth in appended claims, and a preferred form of embodiment of which is hereafter described with reference to the drawings which accompany and form part of the specification.

Of said drawings 7 Fig.1 is a top plan view of the illustrative machine with the casing and other parts omitted.

Fig. 2 is a transverse sectional view of substant-ially the central part of the machine taken on the line 2-2 of Fig. 1.

Fig. 3 is a view in elevation of the rear of the illustrative machine showing clearly the method of supporting the tablet indicators and the new form of interlock.

Fig. 4L is an enlarged detail view of the new form of interlock.

Fig. 5 is a transverse sectional viewof the machine taken near the left hand end of the machine on the line 55 of Fig. 1.

Fig. 6 shows the aligning mechanism for icheselecting arm associated with the clerks :eys.

Fig. 7 is an enlarged view looking towards the indicator carriage and showing the details of the same.

Fig. 8 is a top plan view of the means utilized for guiding the slidably mounted indicators at their lower end. p

Figs. 9 and 10 are views in side elevation of the front and rear of the top of the illustrative machine showing exposed indicators ofa particular transaction.

In the accom ianying drawings the improvements are shown in connection with a machine of the general type fully shown in the pending applications for United States Letters Patent, S. N. 263,125, filed Nov. 19, 1918, and S. N. 288,720 filed Mar. 20, 1919, by Frederick L. Fuller. Only such parts of the machine as are directly involved in the present invention are described herein, however, and reference should be made to the applications mentioned for any information desired as to the construction and operation of the rest of the machine.

Although the improvements have been shownapplied to the machines shown and described in the above cited applications, it is to be understood that the improvements are capable of being applied to or embodied in other accounting machines without departing from the spirit of the invention.

In cash registers of the type used for illustration the keys are arranged in a plurality of banks or sections, the number depending upon the registering capacitydesired. In the present instance five groups of keys have been provided; three denominational groups for registering the amounts of the transactions, one group to denote the particular type of transaction and the remaining group comprising two keys which are designated as the clerks or coupler lifting keys. These keys last mentioned have also various other functions such as selecting totalizers, setting a special type carrier and raising to exposed position a special indicator which identifies the operator of the machine. The amount or value keys are arranged in banks of nine with the exception of the dollars bank which is provided with seven keys. All of the keys are arranged to control the extent of move ment imparted to a frame. which is common to a particular bank of keys, this differential movement being transmitted to the item type carriers and denominational elements of the totalizer. Two totalizers, designated in the drawings as totalizers A and B, are provided. These may be utilized for the purpose of registering amounts for separate depart ments or clerks, or may be used in any desirable manner where it is necessary to segregate the amounts of the transactions entered in the machine into two classes. Four tran action keys are provided for indicating and recording charge, received on account, paid out and no sale transactions. These keys are arranged to impart n'iovement to a frame which in turn adjusts a special type carrier to bring to the printing line of a record strip characters which when printed upon the record strip, will indicate the nature of the sale. As has been stated before the item type carriers associated with the amount keys have a differential movement imparted to them so as to set up on the type wheels an amount commensurate with the keys depressed. The clerks or coupler lifting keys have also associated therewith a special type carried, which is also adjusted to bring to the printing line a special character, which will be a means of identifying the operator using the register during a particular transaction. By the above-mentioned means the amount, nature of transaction and the identifying clerks character may readily be printed upon a strip of paper, as a complete record of the business transacted during a particular period.

The transaction indicators are of the bar type and extend transversely of the machine. A plurality of these indicators are provided so as to give a front and back indication and are further so constructed and located in respect to the clerks and amount indicators as to perform the function of a flash; i. e., to conceal the tablet indicators while they are being raised to their uppermost position. When the tablets which have been selected have been raised and held in their uppermost position, the transaction indicators are lowcred and set so as to exhibit indicia which indicate the nature of the transaction.

The tablet indicators employed in. the present invention are slidably mounted in a vertically movable indicator carriage. During the first half of an operation of the machine the indicator carriage is given a vertical movement carrying with it all of the tablet indicators mounted therein. An arm which has suitable connections to the differential mechanism is adjusted differentially while all the indicators are being elevated so as to select the indicator corresponding to the key depressed. Duringr the second part of the operation of the machine the indicator carriage is lowered and such indicators as have been selected will be retained in their upper or exposed position by the differentially adjusted arm, thereby exhibiting indicators identifying the keys last depressed.

The denon'linational groups of indicators have been so arranged that the indicationof the amount of the sale may be read in the correct order from either the front or back of the machine. To effect this result five groups of indicators are provided, two groups for the cents and two groups for the dimes bank, while the bank of indicators for the dollars denominational group is common to the front and back indication. The clerks indicators bear indicia upon both sides so that the characters may be seen from both sides of the machine.

Tn the illustrative machine the value keys 20, transaction keys 21, and clerks keys 22 are pivoted upon a rod 23 and resting upon the rear ends of the keys is a key coupler 24 pivoted as at 25. When the outer end of the keys are depressed, the coupler is rocked clockwise about its pivot so that its nose 26 enters notches 251 in the rear ends of the keys. The construct-ion and purpose of such key coupler mechanisms are well known in the art.

Connected to the key coupler is a double rack plate 27 2) carrying racks 28 and- 29, the connection bein such that as the coupler is rocked by the keys the teeth of the racks 28 and 29 alternately engagea pinion 291 (Fig. 1) fast to a shaft 30, which shaft may be designated as the rotation shaft. The result of this is that a complete reciprocation of the coupler will effect a complete rotation of the shaft 30. The shaft 30 carries cams and other devices for operating various parts of the mechanism. The mechanism forv effecting rotation of the shaft has not been shown or described in detail because it isso old and well known in the art.

As shown in Fig. 1 there is provided a ratchet wheel 72 secured to the extreme right end of the rotation shaft 30 and against which bears a pivoted spring pressed pawl 73. This is provided for the purpose of insuring a complete operation of the machine.

As shown in F i g. 2, each key is formed with an upwardly extending arm 31 carrying an anti-friction roller 82 engaging a slot 33 in a plate 37 ri idly mounted in a frame 38 loosely mounted on a shaft 39. The slots 83 in the plates 87 are graduated so that each of the keys will impart a different degree of movement to the frame 38. Secured to the frame F. L. FULLER,

June 4, 1929.

CASH REGISTER Filed Oct. 9 1922 5 Sheets-Sheet 5 INVENTOR" E'ederick 1,.11-J1Gr I A ORNEYS N11; NEsS W v tions with a clearance space 96, a supporting lug 97,- and a guide slot 100 formed substantially in the lower central portion of each indicator tablet. The supporting lug 97 is furthermore provided with a cam edge 98 and a square shoulder 99, the purpose of which will be explained hereinafter.

Secured to the cross member 92 in any desirable way are guide studs 101 (Figs. 3 and 8) provided with guide slots 102 which cooperate with the guide slots 100 formed in the tablets 94. The slots 100 of the tablets terminate at their lower ends in an aperture 1011 which is of sufficient size to receive the guide stud 101, the purpose of which is to facilitate assembly of the indicators in the frames. The extent of travel of the indicators is less than the length of the slot so that when an indicator is in its raised position the guide stud 101 will be some distance above the aperture so that a positive relationship between the said guide slots 102 and slots 100 will always be maintained. The upper ends of the tablet indicators are l furthermore guided by the top member 93 as clearly illustrated in Fig. 1. The member 93 has a rectangular aperture the sides of which are formed with saw teeth or serrations 103 which co-operate with the edges of the indicator tablets.

As suggested heretofore, all of the ind cators are raised during the first operation of the machine and during this movement an arm which is under control of the differential mechanism is set, so as to select and hold the particular indicator which is to remain in its uppermost or exposed position, while the remaining tablets are returned to their lower or normal position. The mechanism for accomplishing this will now be explained.

Secured to the differentially actuated frame 38 of each amount bank is a segmental rack 104 (Figs. 1 and 2) meshing with a pinion 105 loosely mounted on the rotation shaft'30. Rigid with each pinion 105 is a earn 106, said cam being formed with a graduated portion 107 and a concentric portion 108. Secured to a sleeve 111 (Fig. 3) which is concentric with a shaft 109,which in turn, is journaledbetween the side frames of the machine, is an arm 112 urged downwardly by a spring 119 (Fig. 2). This arm carries at its forward end. a roller 114 contacting with the periphery of the cam 106. The sai arm may be secured to the connecting sleeve 111 in any desirable manner, but in the preferred form of embodiment this is effected by means of a split hub or clamp 113 similar to that shown in Fig. 2 in connection with the arm 112 of the dimes bank. The sleeve 111 has also secured to it by means such as just de scribed two selecting arms 110 (Fig. 3) preferably of a resilient material, one for the front and the other for the back group of cents indicators. The upper end of each arm 110 carries a lug 1200 and a cam edge 121 formed thereon.

A similar arrangement of indicator selecting mechanism has been provided for the dimes bank. A sleeve 115 is also concentric with the shaft- 109 and carries av pair-f front and back indicator selecting arms 1110 for the dimes indicators and a horizontal arm 112 carrying a roller 114. Sincethere is but one set of indicators for the dollars bank its sleeve 116 carries only one vertical selecting arm 2110 and is likewise provided with a hori zontal arm 112 carrying a roller 114 contacting with the periphery of its corresponding cam 106. The arrangement of these sleeves is bestshown in Fig. 3.

It is, of course, necessary to provide means for aligning and retaining the arms 110, 1110 and 2110 in their set positions so as to hold the selected indicators in their exposed positions until the next operation of the machine. To accomplish this, a plurality of :-.ligning wheels 117, semi-circular in form are secured to the rotation shaft 30, (Fig. 1). These aligning wheels, one of which is clearly shown in Fig. 2, are adjacent the horizontal arms 112 and the face of each wheel is provided with a plurality of grooves or tracks 118, ten in number, one for each position of the arm 112. Referring to Fig. 1, it is seen that each arm 112 is provided with an ear 119 on which is rotatably mounted in any desired manner a roller 120. The periphery of each roller is beveled so as to co-operate with any desired track of the aligning ..wheel.

As best shown in Fig. 2, the portion 107 of the cam 106 begins at the concentric portion 108 and extends outwardly in a spiral line,

the construction being such that when the roller 114 is free to contact with the periphery of the cam surface and the cam is rotated by means of the driving rack 104 and pinion 105, the selecting arms 1110 will, through the connections described, assume positions under the indicators corresponding to the key depressed. The cents arms 110 and dollars arm 2110 are adjusted in the same way.

The sequence of the operation of the parts just described will now be explained in connection with the dimes bank mechanism. The normal position of the parts is illustrated in Fig. 2, wherein it is seen that the selecting arm 1110 has retained the 9 indicator in its exposed position. As before explained, a clerks key 22 must be initially depressed and such depression will raise the coupler to the coupling point where it will be stopped and held in this position. This movement of the coupler will rotate the shaft 30 and the aligning wheels 117 sufficient to free the rollers 120 from the tracks 118 and the arm 112 will be urged by the spring 119 to its lowermost position until the roller 114 contacts with substantially the lowest portion of the spiral cam 106. The connected selectfunctions such as selecting totalizers, setting a special type carrier and raising to exposed position a special indicator which identifies the operator of the machine. The amount or value keys are arranged in banks of nine with the exception of the dollars bank which is provided with seven keys. All of the keys are arranged to control the extent of move ment imparted to a frame. which is common to a particular bank of keys, this differential movement being transmitted to the item type carriers and denominational elements of the totalizer. Two totalizers, designated in the drawings as totalizers A and B, are provided. These may be utilized for the purpose of registering amounts for separate depart ments or clerks, or may be used in any desirable manner where it is necessary to segregate the amounts of the transactions entered in the machine into two classes. Four tran action keys are provided for indicating and recording charge, received on account, paid out and no sale transactions. These keys are arranged to impart n'iovement to a frame which in turn adjusts a special type carrier to bring to the printing line of a record strip characters which when printed upon the record strip, will indicate the nature of the sale. As has been stated before the item type carriers associated with the amount keys have a differential movement imparted to them so as to set up on the type wheels an amount commensurate with the keys depressed. The clerks or coupler lifting keys have also associated therewith a special type carried, which is also adjusted to bring to the printing line a special character, which will be a means of identifying the operator using the register during a particular transaction. By the above-mentioned means the amount, nature of transaction and the identifying clerks character may readily be printed upon a strip of paper, as a complete record of the business transacted during a particular period.

The transaction indicators are of the bar type and extend transversely of the machine. A plurality of these indicators are provided so as to give a front and back indication and are further so constructed and located in respect to the clerks and amount indicators as to perform the function of a flash; i. e., to conceal the tablet indicators while they are being raised to their uppermost position. When the tablets which have been selected have been raised and held in their uppermost position, the transaction indicators are lowcred and set so as to exhibit indicia which indicate the nature of the transaction.

The tablet indicators employed in. the present invention are slidably mounted in a vertically movable indicator carriage. During the first half of an operation of the machine the indicator carriage is given a vertical movement carrying with it all of the tablet indicators mounted therein. An arm which has suitable connections to the differential mechanism is adjusted differentially while all the indicators are being elevated so as to select the indicator corresponding to the key depressed. Duringr the second part of the operation of the machine the indicator carriage is lowered and such indicators as have been selected will be retained in their upper or exposed position by the differentially adjusted arm, thereby exhibiting indicators identifying the keys last depressed.

The denon'linational groups of indicators have been so arranged that the indicationof the amount of the sale may be read in the correct order from either the front or back of the machine. To effect this result five groups of indicators are provided, two groups for the cents and two groups for the dimes bank, while the bank of indicators for the dollars denominational group is common to the front and back indication. The clerks indicators bear indicia upon both sides so that the characters may be seen from both sides of the machine.

Tn the illustrative machine the value keys 20, transaction keys 21, and clerks keys 22 are pivoted upon a rod 23 and resting upon the rear ends of the keys is a key coupler 24 pivoted as at 25. When the outer end of the keys are depressed, the coupler is rocked clockwise about its pivot so that its nose 26 enters notches 251 in the rear ends of the keys. The construct-ion and purpose of such key coupler mechanisms are well known in the art.

Connected to the key coupler is a double rack plate 27 2) carrying racks 28 and- 29, the connection bein such that as the coupler is rocked by the keys the teeth of the racks 28 and 29 alternately engagea pinion 291 (Fig. 1) fast to a shaft 30, which shaft may be designated as the rotation shaft. The result of this is that a complete reciprocation of the coupler will effect a complete rotation of the shaft 30. The shaft 30 carries cams and other devices for operating various parts of the mechanism. The mechanism forv effecting rotation of the shaft has not been shown or described in detail because it isso old and well known in the art.

As shown in Fig. 1 there is provided a ratchet wheel 72 secured to the extreme right end of the rotation shaft 30 and against which bears a pivoted spring pressed pawl 73. This is provided for the purpose of insuring a complete operation of the machine.

As shown in F i g. 2, each key is formed with an upwardly extending arm 31 carrying an anti-friction roller 82 engaging a slot 33 in a plate 37 ri idly mounted in a frame 38 loosely mounted on a shaft 39. The slots 83 in the plates 87 are graduated so that each of the keys will impart a different degree of movement to the frame 38. Secured to the frame From the foregoing it is evident that if the indicator carriage be lifted by a key or keys located at one end of the machine a simultaneous and equal lifting movement of the other end of the indicator carriage will be effected through the connections just described.

The indicator bars may have any desired number of faces provided with suitable indicia. In this particular case the indicator bars are rectangular in cross section and upon the four faces bear the words Cash,- Beceived on account, Charge and Paid out. The words are so arranged that in whatever position an indicator is set, the other indicator will exhibit a similar indicia on the other side of the machine. From this it will be readily apparent that in order to set the indicator to any desired position it is merely necessary to rotate the gear sector let? a proper amount.

The segment frame 58 associated with the transaction keys has secured at one end a segmental rack 1041 (Fig. 1) meshing with a pinion 105 loosely mounted upon the rotation shaft (Fig. 1). Rigid with the pinion 105 is a cam 170 (Fig. 5) similar to the cams 106 previously mentioned. The horizontal arm 161 of a bell crank lever loose upon the shaft 109, carries a roller 163 at its extreme forward end contacting with the periphery of the cam 170. This arm also carries a bevel wheel which engages, at times, any one of a plurality of tracks or grooves formed in the aligning wheel 117 rigid on the rotation shaft. A spring 155 connected between the back frame and the arm 161 tends to keep the roller 163 in contact at all times with the pe riphery of the cam 17 0.

The vertical arm 1501 of the bell crank lever has formed upon its upper end a shoulder 156 and a forwardly curved linger 15? the purpose of which will. be explained later. A spring 158 (Fig. 5) interposed between the segment rack 1 17 and the back frame tends to rotate the segment rack 147 counter-clock wise so that the stud 148 will bear at all times against the edge of the vertical arm 1501 of the bell crank.

If the parts are in the position shown in Fig. 5 and the machine is operated without either the Paid out, Received on account or Charge transaction keys being depressed the arm 1501 will not be disturbed. As a result of this when the indicator carriage and segment 1 17 are lifted during the first operation of the machine and then lowered, the stud 148 on the segment 1 17 will slide along the edge of the vertical arm 1501. This will not aficct the position of the transaction inclicators and they will expose the word Cash. The No sale key, it should be stated here, is not connected with the segment frame 38 and if this key is depressed during an operation of the machine the transaction indicator will not be disturbed and will indicate Cash.

If the Paid out key be depressed during a transaction the highest part of the cam 170 will be brought under the roller 163 and as the indicator carriage is raised upwardly the differentially adjustable bell crank arm 1501 will. be forced rearwardly. When the indicator carriage is in its highest position, the spring 158 tends to keep the stud 14:8 and the edge of the arm 1501 always in contact. Passing of the stud 148 over to the forward edge of the arm 1501 is prevented by the finger 157. Durin the second. half of the operation of the machine the indicator carriage will be lowcred and during the descent of the same the stud 1 18 will strike the upper curved edge of the finger 157 and cause the segment 14'? to be turned until the stud 1 18 strikes the shelf 156 of the arm 1501 with the result that the sector will have been rotated (cloclc described so as to expose the proper indicia.

A metal shield 160 extending transversely of machine is formed with suitable openings through which the tablet indicators are visible and is securely fastened to the back frame 86 (Fig. 5). In order to indicate the sign before the indicators of the dollars bank the same may he carried by the opposite side of the indicators of the dimes group, (Fig. 8), the shield 160 being suitably aperturcd to display the same. As a modification the 5}; sign may be printed upon the shield as illustrated in Fig. 10. To permit the bent finger 157 to assume'its foremost position the shield 160 is further provided with a slot 173 (Figs. 9 and 10). The upper part of the cabinet of the nachine is equipped with glass plates 165 on both sides through which the tablet and transaction indicators may be viewed. 7

An important feature of the present invention is that means is provided for positively returning any raised indicator to' its normal position if it should happen to bind or stick in the indicator carriage. The mechanism for accomplishing this is best illustrated in Fig. 2. If the machine should now be conditioned for releasing the exposed indicators the exposed indicator 9 1, sh wn in this figure should drop freely to its normal position. If for some reason, binding should exist between the indicator and the carriage, the indicator will not drop and will be raised simultaneously with the carriage until its upper edge contacts with the plate 17% integral with the ield 160. Upon further elevat of the C2 go the indicator will be held sla ionary while it is being forced back to its normal position with relation to the carriage.

By virtue of this construction it is possible to construct the indicator tablet of compara tively thin material having a low speciiic gravity, since the weight of the tablet is not entirely depended upon for returning the in dicator to its normal position. A further advantag is that since t is tablets are light in weight t e indicator carriage as a unit will be comparatively light in weight and will decrease the load upon the operating keys.

If so desired, the parts of the indicator mechanism which are visible through the glass plates 155 may be painted black and the characters upon the shield and indicator tablets white. Due to the contrast the exposed characters will stand out more prominently and will be visible at a maximum distance.

Although two clerks or operating keys have been shown in the illustrative machine, it is evident that any number may be provided in connection with a corresponding .i'uunber of totalizers and indicators without de urrting from the spirit of the invention.

While the form of mechanism herein shown and described is admirably adapted to fulfill the objects primarily stated it is to be understood that is not intended to confine the.

cater for raising and lowering the in carriage during a regular opera" n the machine, a difieren .al mechanism actuated by said manipulative devices, and an arm s t by the dillerential mechanism for sclectand exposing indicators PlOpl'lPttQ to manipulative (lQ'VlCGS.

.1. 1 2. In a machine oli toe mas combination of an ind eato rality of indicators slid 1n, manipulative devic cator, means can led by i i .s "aunted cooperating with the manipulaa. mes for IttlSJllf" and lOWQl'lil the indicator cara fa riage during a regular operation of the ma chine, a differential mechanism actuated by said manipulative devices, and an arm set by the ditierential mechanism for selecting and exposing indicators appropriate to the manipulative devices.

3. In a machine of the class described, the

znviaeio combination With a movable indicator car'- riage, of a plurality of indicators slidably mounted therein, manipulative devices, one for each indicator, differential mechanism controlled thereby, means for raising and lowering the carriage upon operation of any of said manipulative. devices, an indicator selecting arm, a cam rotated and set by the (liltei'ential mechanism for setting the selecting arm in line with an appropriate indicator, and means for retaining and holding the arm in the position set by the differential mechanism to expose the appropriate indicator.

4. In a machine of the class described, the combination with a movable indicator carriage, of a plurality of indicators slidably mounted therein, manipulative devices, one for each indicator, dilierential mechanism controlled by said devices, means for rais ing and lowering the carriage during a regular operation of the machine, an indicator selecting arm, a cam rotated and set by the differential mechansim for setting the selecting arm in line with its appropriate indicator, and means for retaining and holding the arm in the position set by the differential mechanism to expose the appropriate indicator, said means comprising an alignin g wheel carrying tracks co-operating with a member connected to the indicator selecting arm.

In a machine of the class described, the combination with an indicator carriage carrying indicators slidably mounted therein, of a plurality of clerks keys, means for selooting and exposing appropriate indicators, and means under the control of any one of the clerks keys for releasing all the exposed indicators of a previous transaction.

6. In a machine of the class described, the combination with an indicator carriage, of tablet indicators slidably mounted therein, a phu'ality of clerks keys, independently movable to a key coupling position, means for exposing appropriate indicators, and means under control of any one of the clerks keys for releasing all the exposed indicators of a previous transaction, said means being effective during the time the said key is being moved to its coupling position.

7. in a machine of the class described, the combination with a movable indicator carriage, of a plurality of indicators slidably mounted therein, a stud secured to said carriage, slots formed in said stud, and a second member provided with serrations and also secured to said carriage, said indicators being guided at their lower ends by said slots formed in said stud and at their upper ends by the serrations formed in said second member.

8. In. a cash register, the combination with a plurality of manipulative devices, of a vertically movable indicator carriage,-indicators rotatablymounted therein, means controlled by said manipulative devices for lifting said carriage, a differential mechanism actuated by the said manipulative devices, and an arm set by the differential mechanism for rotating the indicators to identify the manipulative device operated.

9. In a machine o'f-the class described, the combination with a plurality of manipulative devices, of a vertically movable carriage, a group of indicators slidably mounted therein, a differential mechanism, a differentially adjustable arm common to said indicators and controlled by the differential mechanism,

a member carried by the said carriage and common to all the manipulative devices and operated thereby forraising and lowering the carriage during a regular operation oi? the machine, the differentially ad ustable arm bein et during theraising movement the length of the slots in the indicators being greater than the extent of movement of the indicator *arriage. u

11. In a machine of the class described the combination witha vertically movable carriage, vertically movable indicators arranged in a plurality of groups there being two groups for a denominational order, a differential mechanism and selecting arms connected tothe differential mechanismoperating in unison for exposing corresponding indicators of the two groups.

12. In a machine of the class described, the combination with a vertically movable indicator carriage, indicators slidably mounted therein, means for raising and lowering the carriage during a regular operation of the machine, a differential mechanism supporting lugs carried by the indicators, and selecting arms under control of the difierential mechanism for establishing a cooperative relationship between the supporting lugs of the indicator and said selecting arms wherebythe desired indicator Will be exposed as the indicator carriage is lowered.

13. In a machine of the class described, the combination with accounting devices containing a plurality of denominational orders, of manipulative devices, mechanism under the control of the manipulative devices for entering items in said accounting devices, a plurality of groups of tablet indicators for each of the lower denominational orders, one group to indicate at oneside of the machine bearing indicia to indicate at bot-hot said" sides of the machine, means controlled by the, item entering mechanism for simultaneously moving all of the indicators from an ineffective position to a position'where indications are effective and means controlledby the manipulative devices of the-item entering mechanism for retaining the desired ones of the indicators in the effective position while the others are returned to ineffective posi tion. i

14;. In a cash register, the combination with a. plurality of manipulative devices, a movaable indicator carriage carrying a plurality of tablet indicators slidably mounted therein, a fixed member co-operating with the in-. dicators, selecting arms under controlof the manipulative devices for selectingand exposing indicators appropriate to the manipulative devices, and means for moving the indie cater carriage toward the fixed member whereby the engagement of the fixed member with the exposed indicators will return said indicators to their unexposed positions.

15. In acash register, the combination with a plurality of manipulative devices, of a reciprocating indicator carriage carrying a plurality of tablet indicators slidably mounted therein, selecting arms set under control of the manipulative devices for exposing in: dicators appropriate to the'manipulat-ive devices during the lowering of the indicator arriage and means for holding the exposed indicators stationary while the indicator carriag'e is being raised.

'16.In a machine of the class described a movable indicator carriage, a plurality of rotatable indicators mounted therein, means mounted on said carriage for rotating the indicators, a difierential stop member inovable variously into the path of said means, operating connections for reciprocating said carriage, and keys for controlling said differ ential stop member whereby said indicators may be differentially positioned upon recip- 'rocations of said carriage.

17. In a machine of the class described an indicator carriage, a plurality of rotatable,

indicators and a plurality of slidable indicators mounted therein, said rotatable indicators each bearing a plurality of indications, operating connections for reciprocating said carriage, keys, differentially settable arms controlled by said keys and adapted to co} operate with said indicators to expose se-,

lected indications upon reciprocations of the carriage, and means for holding. the indica-' tors in selected positions. I 1

18. In a machine of the class describeda plurality of indicating elements adapted to be selectively exposed, an arm adapted to be differentially positioned for selecting the indicator to be exposed, an element on said arm, and a grooved disk cooperating with said element to hold said arm in set position.

19. In a machine of the class described a plurality of indicating elements adapted to be selectively exposed, an arm adapted to be differentially positioned for selecting the indicator to be exposed, a pair of projections on said arm, a cam cooperating with one of said projections for differentially positioning said arm and a grooved disk cooperating with the other of said projections for holding said arm set.

20. In a machine of the class described a movable indicator carriage, a rotatable indicator carried thereby, a toothed segment adapted to rotate said indicator, a stop memher having a graduated surface adapted to cooperate with said segment, a cam for positioning said stop member, and a plurality of keys for controlling the positioning of said member and the movement of said carriage, whereby said indicator is rotated dili'eren'tial extents.

21. In a machine of the class described a movable indicator carriage, a rotatable indicator carried thereby, a toothed segment mounted on said carriage and adapted to ro tate. said indicator, a stop member having a graduated surface adapted to cooperate with said segment, a cam for positioning said stop member, and a plurality of keys for controlling the positioning of said member and the movement of said carriage whereby said indicator'is rotated differential extents.

22. In a machine of the class described, a plurality of indicating elements adapted to be selectively exposed, an arm differentially movable with respect to said indicating elements for selecting the indicator to be exposed, an element on said arm, and a grooved disk cooperating with said element to hold said arm in set position.

23. In a machine of the class described, a plurality of indicating elements adapted to be selectively exposed, an arm movable differentially with respect to said indicating elements for selecting an indicator to be exposed, a pair of projections on said arm, a cam cooperating with one of said projections for differentially positioning said arm, and a grooved disk cooperating with the other of said projections for holding said arm set.

24. In a machine of the class described, the combination with a movable indicator carriage carrying indicators slidably mounted therein, of a plurality of clerks keys, means cooperating with said movable carriage whereby selected indicators may be exposed, and means under the control or" any one of the clerks keys for releasing all the exposed indicators of a previous transaction.

25. In a machine of the class described, the combination with a movable indicator earriage, of tablet indicators slidably mounted therein, a plurality of clerks keys independently movable to a key coupling position, means cooperating with the movable carriage whereby appropriate indicators may be exposed, and means under control. of any one of the clerks keys for releasing all the exposed indicators of a previous transaction, said means being efiective during the time the said key is being moved to its coupling position. 7

In witness whereof I have signed my name hereto this 6th day of October, 1922.

rnnnnnrok L. FULLER. 

